package com.prj.ufdm.cloud.svr.gateway.config;

import java.nio.charset.Charset;
import org.springframework.data.redis.serializer.RedisSerializer;
import org.springframework.data.redis.serializer.SerializationException;
import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.parser.ParserConfig;
import com.alibaba.fastjson.serializer.SerializerFeature;
/**
 * DESC: FastJson Redis 序列化 <br>
 * @param <T>
 * @author 胡义振
 * @date 2020年3月2日
 */
public class FastJsonRedisSerializer<T> implements RedisSerializer<T> {
	
	public static final Charset DEFAULT_CHARSET = Charset.forName("UTF-8");
	 
    private Class<T> clazz;
 
    static {
    	ParserConfig.getGlobalInstance().setAutoTypeSupport(true); 
    }
    
    public FastJsonRedisSerializer(Class<T> clazz) {
        super();
        this.clazz = clazz;
    }
 
    @Override
    public byte[] serialize(T t) throws SerializationException {
        if (t == null) {
            return new byte[0];
        }
        return JSON.toJSONString(t, SerializerFeature.WriteClassName).getBytes(DEFAULT_CHARSET);
    }
 
    @Override
    public T deserialize(byte[] bytes) throws SerializationException {
        if (bytes == null || bytes.length <= 0) {
            return null;
        }
        String str = new String(bytes, DEFAULT_CHARSET);
        return (T) JSON.parseObject(str, clazz);
    }
}
